Valve mechanism.



G. P. B. HOYT.

VALVE MECHANISM.

APPLICATION man JULY 3. 19:5.

Patented Apr. 18, 1 916.

WITNESSES,

ATTORNEYS ;;dent of the city "of N ew' "York, ;Jamaica, borough: iofQueens, inthe county of Queens and;:;State of New York, have invented a Tolz l l ielijorn z't may 00,acem.'.. 3

Be it known that I; GABRIEL P. B. :Hox'r, a citizen of the United States, and a resinew andjlmproved Valve Mechanism, of which the following is'a full, clear, and exact :description. 6:

Theobject of the invention is to provide a new and improved valve mechamsm more especially designed for use on internal combustion engines, and arranged togove'rng' t the admission of ,the

explosive mixture "and the exhaust of the. products 7 of combustion, and' itowprei'ent leakage of the' explosive mixture-during the compression and explo-z siveperiods ,thus rendering the engine rihighly-eflicient,

In, order to accomplish the desiredresult, use-is'made of a valve seat, a valve movable on; the .said valve seat and mechanical 1 means for moving: the said valve firmly onto A practical embodimentiofthe invention nthei said gs'eat during the v closing movement ofgwthecvalve and forlallowing the valve to,

move outgoffirrn contactlwith the said seat @iringthe open ng movement l of the valve.

ml issrepresented in the I; accompanying drawcategcorresponding partsin all of the views.

s? A vare closed by gen admissionchest C1 and anekhaustchestfD, of which tl e adniission chest fGvisconneieteduby a pipe E with a wcf explosive ,miiituresupply; and

i gs formingr-a part. of-this specification, whichlsiniilar characters* of reference indi :Figure ilj-isa sectional side elevationof the valve; mechanism as applied; and showing the tadmissionnvalve closed and the ex-.

beast-valveopen, the'section being on the line;.1? -1= of Fig,v 2;; a Fig, 2 is a cross section ofethe valve i mechanism on the line 2-2 of Fig; 1;;a'n'd Fig.' 3 is ja' seotional side eleva- 40 tionof the same :on the line 3-3 of Fig. 2.

ln'th'epylinder A of,the internal cornbus-' tion enginetreciprocates the piston B and the; upper endA: ofs theecylinder A forms .the: working-,1 vchamber a; and is provided at opposite SidBSIQWith-padmission ports a and exhaust ports 6, the said ports leading into recesses A A. formed externally in the sides of the cylinder;

Gunman: 3. 0m, ormaw YORK, N. Y. a

. Specification otLetters Patent. Application filed Jilly 8, 1915, Serial No. 37,885.

haust valve F,

"F and F is provided The recesses'A p I I p durlngthe time the compression; and the VALVE mEcnnnrsmQ from the chest D leads an exhaust for carrying ofl the products/of combusanclD, and covering the are formed at their outer seats for an admission valveF and .an'e' xto moveinto and out of register with the port a or 'b and with in the wall C and D.

with a post F= ;extending through a slot el fo'rmed inthe wall C (or D) .ings. Each post F I G with a rod H mounted to slide intthe bottom of the correspondingchest-Cor-D, and this red H is connected with the usual" a cam or other mechanism for imparting move. I into open position, the return ofv thefvalve into closed positioin being accomplished by'a The mechanism for moving the valves F movement to the rod with a view to the corresponding valve E or F? and F is the same as now generally employed for actuating puppet valves of inpipe t1on., The. walls 0 and D'of the chests C both alike in construction a and provided with ports :0 and 0' adapted the post being, preferably f astened in-place on the valve F bolt F as plainly indicated in thedraw is connected by a tented A a 1s, 1916;" i i recesses A faces into valve ports'd or d formed); Each of the valves its spring H. 7

ternal' combustion e'ngine'sfand': hence fur ther description necessary. v 1

Each 'post F? is provided on .lopposi t sides with trunnions I on which arejourf;

of the same is not, deemed;

J naled frictionrollers J ada'ptedto travel on inclines K attached to or...forming integral] parts'of'the wall G or D and extending within the corresponding chest C 0r-iD.

The inclines K are so arranged that when tion the friction rollers 'Jtravel down the the valve F or F is moved into, open posi;

inclines, but when the valve F or Ff moves '4 into closed position thef frictionrollersv 3' travel up the inclines thus drawing the valve .1? or'F' firmlyjonto itsseat on the outer faceoffthe'corresponding wall C or' D. Thus during the-time the valve 'F or F is closed it is firmly held on its seat on the corre's o'ndin wall C (or D that is,

. p M D 7 explosion take place within the cylinder A! "When the 'valve'F or F" is' in' tion as described the force dosedes}; I compres ion as well as that of the explosion within the cylinder A exerts apressure on the closed valves l and l to aid the friction rollers J in holding the valves to their seats. WVhcn itv valve F is in open position the products of combustion pass from the cylinder by Way of the registering ports 0, d, and c, d, into the chest D and out of the same by way of the exhaust pipe E. It is understood that the link G connecting the post F with the corresponding rod H permits the movement of the valve F or F toward and from its seat without danger of bending the rod H. In practice, the post F is preferably fas tened to the corresponding valve F or F by a bolt F but I do not limit myself to this particular construction.

The valve mechanism shown and described is very simple in construction and lubrication of the valves F and F is not necessary, and any wear on the valves or their seats is readily takerr up by the'friction rollers J traveling on the inclines K so that the valves are held firmly to their seats during the time the'valves are in closed position.

Having thus described my invention, I

" claim as new and desire to secure by Letters Patent:

1. A valve mechanism for internal combustion engines, comprising a chest having an exterior valve seat ad acent to and spaced 0 from the engine cylinder, a valve movable on the said seat, means for imparting move ment to the said valve, and mechanical means within the said chest for pressing the said valve firmly onto its seat during the closing movement of the valve and to allow the valve to move out of firm contact with the seat during the opening movement .of the valve.

2. A. valve mechanism for intern a1 combustion engines, comprising a chest having a wall provided with a port, the outer face of the wall forming a valve seat, a slide valve mounted to slide on the said valve seat and having a port adapted to move into and out of register with the said wall port, the said valve having a post extending into the said chest, means connected with the said post forimparting a sliding motion to the said valve to move the ports into and out of register, and co-acting means on the said post and wall to draw the valve to its seat on the valve moving into closed position.

3. A valve mechanism for internal combustion engines, comprising a chest having a wall provided with a port, the-outer face of the wall forming a valve seat, a slide valve mounted to slide on the said valve seat and having a port adapted to move into and out of register with the said wall 'port, means for imparting a sliding movement to the said valve to move the said ports into and out of register, and co-acting means on the said valve and wall to draw the valve to its seat on mpvingkthe valve into closed position.

4. A valve mechanism for internal combustion engines, comprising a chest having a wall provided with a port, the outer face of the wall forming a valve seat, a slide valve mounted to slide on the said valve seat and having a port adapted to move into and out of register with the said Wall port, the said wall having a slot, and the valve having a post extending through the slot into the chest, means connected with the said post forimparting movement to the valve, an incline on the inner face of the wall, and a friction roller journaled on the post and engaging the said incline.

5. A valve mechanism for internal combustion engine s, comprising a chest having a wall provided with a port, the outer face of the wall forming a valve seat,'a slide valve mounted to slide on the said valve seat and having a port adapted to move into and out of register with the said wall port, the said Wall having a slot and the said valve having a post extending through the said slot into the chcst, an actuating rod slidable in the said chest, a link connecting the said rod with the said post, a friction roller on the said post, and an incline on the inner face of the said wall and engaged by the said friction roller.

6. In an internal combustion engine the combination with a cylinder having a port, a chest held on the said cylinder and having a wall spaced from the cylinder, the wall being provided with a port and the face of the wall nearest the cylinder being spaced therefrom and forming a valve seat, a valve movable on the said valve seat and having a port I adapted to move into and out of register with the said cylinder port and the said wall port and mechanical means within the said chest and connected with the said valve by way of the said wall to press the valve firmly onto its seat during the closing movement of thevalve and to allow the valve to move out of firm contact with the said seat during the opening movement of the said valve.

7. In an internal combustion engine, the combination witha cylinder havin a port, a chest held on the said cylinder an having a wall spaced from the cylinder, the wall being provided with a port and the face of the wall nearest the cylinder being spaced therefrom and forming a valve seat, a valve movable on the said valve seat and having a port adapted to mox e into arid out of register name to this specification in the presence of with the said cylinder port and the said wall two subscribing witnesses.

'pprt means for iin arting movement to the said val ve,,an d mezihsv for drawing the said GABRIEL Q 5 valve to itsseat, during the time the valve Witnesses: Y

moves into cldsed' pos ition. THEO. G. HosTER,

InjtestimonyQwhereof I have signed my PHILIP D. ROLLHAUS. 

